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The CDC routinely handles deadly agents that can cause disease and infection. View 10 of these public health enemies to learn more.

Mosquitoes are insects that have been around for over 30 million years. Learn about mosquitoes and find out how to reduce mosquito populations.

Bromelain can be used to treat many ailments and illnesses. Learn all about bromelain and other alternative medicines at HowStuffWorks.

Pet meds for traveling are really handy. Learn all about the different pet meds for traveling at Animal Planet.

Can melatonin help you sleep? Read on to discover if melatonin supplements can be a sleep aid and the connection between melatonin and sleep.

If you've got allergies, you know the drill. Learn allergy symptoms, reactions and the immune-system mix-up we call an "allergy."

Skin wrinkles are a common beauty skin problem. Learn more about how skin wrinkles work at HowStuffWorks.

Solar urticaria is a rare skin reaction caused by exposure to certain ultraviolet light. Learn more about solar urticaria at HowStuffWorks.

Want to learn about sun poisoning? Visit HowStuffWorks to discover how the sun can actually poison you.

Tea tree oil is great for skin. Learn how to improve skin with tea tree oil at HowStuffWorks.

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